| NER Class S1 LNER Class B14 | |
| Powertype: | Steam |
| Designer: | Wilson Worsdell |
| Builddate: | 1900-1901 |
| Totalproduction: | 5 |
| Whytetype: | 4-6-0 |
| Leadingdiameter: | 3inchesftNaNinchesin (ftin) |
| Driverdiameter: | 6inchesftNaNinchesin (ftin) |
| Wheelbase: | 27inchesft6inchesin (ftin) engine 12inchesft8inchesin (ftin) tender 51inchesftNaNinchesin (ftin) total |
| Locoweight: | 67.1LT |
| Tenderweight: | 41.1LT |
| Locotenderweight: | 108.2LT |
| Axleload: | 19.5LT |
| Totalsurface: | 1750square feet |
| Firearea: | 23square feet |
| Fireboxarea: | 120square feet |
| Tubearea: | 935square feet |
| Superheaterarea: | 294square feet |
| Fluearea: | 401square feet |
| Boiler: | 4inchesft9inchesin (ftin) |
| Boilerpressure: | 175psi |
| Cylindercount: | 2 (outside) |
| Cylindersize: | 20inchesx26inchesin (xin) |
| Tractiveeffort: | 19310lbf |
| Valvegear: | Stephenson |
| Operator: | North Eastern Railway, London & North Eastern Railway |
| Fleetnumbers: | 2111-2115 |
| Withdrawndate: | 1929-1931 |
| Disposition: | All scrapped |
The NER Class S1 (LNER Class B14) was a class of 4-6-0 steam locomotives of the North Eastern Railway. It was designed by Wilson Worsdell and five locomotives were built between 1900 and 1901 at Gateshead works. The S1 was similar to the NER Class S but had larger driving wheels and a higher boiler pressure.[1]
Schmidt superheaters and longer smokeboxes were fitted between 1913 and 1917.
When built, the S1s hauled heavy passenger expresses between York, Newcastle, and Edinburgh. They were gradually replaced on these services by NER Class R and NER Class R1 4-4-0s. From 1907, they were mainly used for hauling fish trains.
| Number(NER/LNER) | Built date | Withdrawal date | Notes | |
|---|---|---|---|---|
| 2111 | 31/12/1900 | 31/7/1929 | ||
| 2112 | 30/6/1901 | 31/5/1931 | Last to be withdrawn | |
| 2113 | 30/6/1901 | 31/10/1930 | ||
| 2114 | 30/6/1901 | 31/10/1930 | ||
| 2115 | 31/8/1901 | 30/6/1929 | First to be withdrawn |
All five locomotives were withdrawn between 1929 and 1931 and none were preserved.